{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "adverse event", "trigger": true, "arguments": ["Treatment", "Effect", "Subject.Age", "Subject.Gender", "Subject", "Combination.Drug", "Subject.Race", "Treatment.Time_elapsed", "Treatment.Freq", "Treatment.Route", "Subject.Population", "Treatment.Duration", "Treatment.Dosage", "Treatment.Drug", "Subject.Disorder"]}, {"event_type": "potential therapeutic event", "trigger": true, "arguments": ["Treatment.Disorder", "Subject.Age", "Combination.Drug", "Treatment.Dosage", "Subject.Population", "Treatment.Freq", "Treatment.Duration", "Treatment.Route", "Treatment.Time_elapsed", "Treatment.Drug", "Subject.Disorder", "Treatment", "Subject.Race", "Effect", "Subject", "Subject.Gender"]}], "input": "The patient was placed on omeprazole after his first cycle of high-dose methotrexate for stress ulcer prophylaxis, and it was discontinued before the start of the first day of the patient's second round of high-dose methotrexate."}
{"adverse event": [], "potential therapeutic event": [{"trigger": "prophylaxis,", "arguments": {"Treatment.Disorder": "stress ulcer", "Subject.Age": "NAN", "Combination.Drug": "NAN", "Treatment.Dosage": "high-dose", "Subject.Population": "NAN", "Treatment.Freq": "NAN", "Treatment.Duration": "NAN", "Treatment.Route": "NAN", "Treatment.Time_elapsed": "NAN", "Treatment.Drug": ["omeprazole", "methotrexate"], "Subject.Disorder": "NAN", "Treatment": "methotrexate", "Subject.Race": "NAN", "Effect": "NAN", "Subject": "The patient", "Subject.Gender": "NAN"}}]}